The fourfold essence of human life is

1. DHARMA (righteousness),
2. ARTHA (wealth),
3. PRITI (affection)
4. YASHA (fame), which are based on the offspring.

So the man of self-restraint should always seek to maintain his virility by means of virilification, as righteousness, wealth, affection and good repute are dependant on the maintenance of healthy manhood, which is a means of begetting a son in whom these qualities are based.

According to Ayurvedic texts, one should not aim just to have an offspring but should aim to have SUBAHUPRAJA which means a healthy and strong offspring who is physically as well as mentally fit and proves to be good citizens. This latter is the aim of vajikarana medicines.