Why should we offer coconut to god

We offer coconuts during poojas, yagnas, homas and other special occasions to god. But we are unaware why should we offer coconut to god.
  

Fact behind coconut breaking is:
  The outer shell around the coconut resembles our ego. when we break coconut in front of the god, it shows that we are leaving our ego. As of white coconut inside the shell, we flattening our pure heart in front of him and asking his blessing to keep our life’s pure like coconut water

In another context, coconut means our body. Skin above the green coconut is our skin. Fiber resembles our flesh, shell as our spine, coconut water is our soul. Three eyes resemble our three nadis

Before chanting Vishnu sahasranamam is it necessary to chant rudhra shapa vimochanam?

Fact:    If at all we want to chant Vishnu Sahasra namam according to mantra, it is necessary to learn rudhra shapa vimochanam from guru.
   When it comes to pujas, other chanting and reading other slokas this rules need not be implemented. Their may be existence of many rules while chanting slokas or mantras. It is the best practice to learn mantras from gurus. With out guropadesham, mantras may cause harm or in other words you may suffer troubles and problems.

Vyasa maharshi moral:

Is know about yourself

Brugu Maharshi moral:

Excel your dream work.