Number Seven is the strongest of all numbers from 1 to 9. They get the reward of six on earth on the one hand and go for the inner search of soul and spiritual knowledge and discover the divine laws on the other. A mystic number recognised by all religions of the world - seven days in a week, seven colours in spectrum, seven steps in the Ziggart(ladder) to Heaven, seven planets influencing the events on earth, seven notes in the scale of music, seven vowels in the Greek alphabet, seven chakras(knots of energy) in the human body and seventh day the God rested after creation as in Bible. Multiples of seven days, weeks and months are crucial points in the development of the child since birth. Plants of pure strain have seven petals in their flowers. The highest among them being the lotus on which Buddha and other Hindu forms of God are found being seated.