What is consciousness? Are we pure consciousness?

Keep in mind is that some states of consciousness are not linked to memory.. for example sleep consciousness is not and so is cosmic consciousness. If someone asks you what happened in the sleep – you may not remember. All you remember are the points in time-scale of beginning and end of it. Cut of from the senses and memory may not be there.. but that does not mean consciousness doesn’t exist in that frame of time.

Does surrendering to divine help me receive ‘The best’?

Surrendering can be understood best by this example. Suppose you get a firm news/call just now that you have been selected for a gift and in next two hours someone will deliver you 1 Crore rupees at your doorstep. But – The condition of this lottery/Gift is that you should be fast asleep when the person knocks the door.