Hi... yes I think instinct is selfish for preservation...

we should live for our relatives or ourselves - First of all for our Lord Jesus Christ. Second , for our relatives. Truth is that every man in the world is your relative. But you cannot support everyone so you mostly care for your family and your friends. This is enough for you if you do it with pleasure. And this is the beginning... after caring for your family you will think about other people as well. This feeling will not leave you until you die. We call such people - asltruists. Altruism is selfless concern for the welfare of others. , what support u live in the world what push u forward when u are sadness or lose heart - God's love.

instict = selfish

Human lived in the state of nature, and in state of nature, the laws of nature prevailed. The basic law of these was "survival of the fittest". So to abide by that law, its natural to be selfish. Human instinct is selfish. with time and development of civilizations, human acquired tolerance. So in short, instinct is selfish and tolerance is acquired.

We must serve others and love them. Love is very important. Our Lord, Jesus Christ tells us - love each other ... By this everyone will recognise that you are my disciples if you love one another ( John 13:35 )