In some regions, Hindus perform ritualistic marriage of
peepal tree and neem tree. This form of worship is associated with fertility
and there is a symbolism associated with it. It is a kind of prayer and ritual
to the almighty.
Peepal tree is considered as male principle (ashwatha
narayana) having multiple seeds for maximum propagation. The neem tree is
always associated with Mother Goddess Shakti or female principle. This is
because it has a single large egg like seed.
The ritual and prayer thus unites male principle with female
principle. Thus it is a fertility rite performed for healthy children.