How to find peace of mind?

Many people have good talent, health ,wealth and fame. But only a few have peace of mind.Its a question how can we get peace of mind?To get peace in mind , we should judge ourselves less harshly. We should not ascribe superior power to our neighbours. We should realise that all men and women bear the scars of many lost battles. Let us accept ourselves what we are i.e. a combination of strengths and weaknesses. We have to accept the truth that we are capable in some directions and limited in others. We have to remember also that we can and should change ourselves.
Every normal person can control fears and worries. Our feelings of insecurities are left over from childhood when we were below average. We should look at these shortcomings in the light of maturity and see that others are no less faulty than ourselves. As matured adults, we should withstand many shocks.
  The obstacles to peace of mind lie within us. If we free ourselves from 'shadow fears' , accept ourselves as we really are , learn to face grief  and remain beyond it , we can have peace of mind.

car

Cars are the vehicles with four wheels.They are used to transport mainly the passengers from one place to the other. The car has its  own engine for its operation. It has various numbers of seat usually for five to eight people.
         There are different types of car one of which is the motor car. It has the space for passengers along with the baggage. The use of cars have been found to connect the urban places to the suburban areas. The fuel used to operate the car engine is petrol, diesel and gasoline. The number of car is increasing annually in the industrial countries like India China Japan, U.S.A.etc.
          Cars are of different names like Ford car, Chevrolet car, Jeep, Hyundai, Honda, Mitsubishi, Toyota, Volkswagen, BMW etc. Cars are of different models. For example, Luxury cars, Sports cars, vans, Green cars etc.  

pisces

Introduction: Pisces are the animals which are included under phylum chordata. Their group is vertebrata. They have got jaws.So, they are also categorised under gnathostomata.

General characters of pisces:  Pisces exhibit the following characters:

-They aquatic in habitat. They live in any type of aquatic habitat like sea, lakes, ponds ditches rivers etc.
- They have stream - lined body shape which helps them to reduce water resistance during swimming mode of life.
-Locomotary organs are the fins which help in swimming. There are different types of fins in the body of fishes. Foe example, the dorsal fin, ventral fin, caudal fin, pectoral fin and pelvic fin.Among the different types of fins, the dorsal, ventral and the caudal fins  are unpaired and called the median fins where as the pectoral and pelvic fins are the paired fins. Fins are supported with finrays.
- Fishes respire through the gills. So, the respiratory organs are the gills which take in oxygen whch is dissolved in water. They give out carbondoxde.
- Their body is covered wth scales. Scales may be spiny or smooth and slippery. Some fishes have the spiny scales and some have the smooth and slippery scales.Anyway, Scales are the organs which protect the body of fishes from externsl injury and also help to hes escape from the enemies.
- Some fishes have the air-filled sac like  structures called air bladder. Air bladder helps them to live and adjust their body in the different depths of water accordng to their need.

Protochordates

Introduction: Protochordates can be defined as the primitive group from which chordate animals developed. Actually protochordates include all animals which were prior to the chordates.

Distinguishing characters of protochordates:  Following are t
he important characters of group Protochordata:
- They have a small rod like structure on the dorsal side of their body which is called notochord.
- They have the dorsal tubular nervous system whch is not very well- developed and is of primitive type.
- they have the primitive type of gill slits
Protochordate animals may have the notochord in the different places like in tail region or in head region and in one half region of the body.
Depending on the position of the notochord the group protochordata is again divided into following subphylum:
(1) Subphylum - hemichordata in which the notochord is present in the anterior one half of the body. The representative animal os this subphylum is called Balanoglossus.
(2) subphylum - urochordata in which the notochord is present in the tail region. The representative animal of this subphylum is called herdmania.
(3) Subphylum - cephalochordata. The representative animal of this phylum is called Amphioxus.
It is very important to know that all these three subphyla of the group protochordata although exhibit the primitive characters of phylum chordata can not be included under vertebrata because they do not have fdwell developed vertebral column. But they have the initial form of vertebral column which is just the notochord or the rod like structure found in the dorsal side of the body.