Pradakshina or rotation in Temples
Why do we do pradakshina? Without a center point a circle cannot be drawn. Here The Lord is the center, source and essence of our lives. By remembering him we are doing the focal point in our lives and doing our daily chores. This is the implication of pradakshina.
The boundary of the circle is equidistant from the center. This signifies that we are equally close to the Lord and God's grace flows towards us without partiality. We always do te the pradaskhina always on our right. In India right side symbolizes auspiciousness. This is the reason we circumambulate the to lead an auspicious life of righteousness. Lord is the indispensable source of help and strength. In India we consider our parents, teachers also as equal to God. We can understand this from matrudevo bhava, pitrudevo bhava, acharyadevo bhava. Keeping all these in mind we always do the pradakshina around our parents and divine personages. Chennai temples are very famous. Chennai people do Adi Pradakshina (step by step) in temples as their offering to God after succession in their plan or exams.
During the pooja also after the traditional worship we do pradakshna around ourselves. This is because we recognize and remember that the Supreme (Lord) is within us, which we idolize and worship outside. Shaanti means peace. Disturbances are always there either by us or by others. When disturbance ends, peace is experienced. Peace is always with us. When we sit calm we can identify it. If peace is there happiness is there. That is why everybody like peace in their life.
Very few people are able to manage remain peaceful even in the trouble. To raise peace we pray. By chanting prayers, we feel peace inside us, whatever be the external disturbance. All such prayers are normally ends by chanting Shaanti thrice.