This is the effective description to understand whole construction of a link777.A little bit of the doubt, it has been cleared. Apart from this, I have read the post of @blind-spot,in which he described it in very simple words. I am feeling very excited.A tremendous announcing at the beginning of the new year.
Having your support, there is a wave of excitement in the mind. I will continue my work with new energy.
Thank you @nathanmars sir for your encouraging support.