Bhagvan says about surrender,,

Bond with the Divine and Surrender
Each one of you should try and find out what suits you best.
Some play with God, some fight with God, some cajole with Him; and some communicate with Him.
You should do whatever comes naturally to you. However, the key is to have a strong bond with The Divine.
One other deterring factor for Grace is the emotion that you carry in your prayer.
If there is emotion, the response is very fast.
There are some people, who assume that God looks into all of their needs and help them to live without any stress.

For some he does that even before they ask.
The kind of prayer that would suit you depends on your upbringing, your background and your culture.
The choice is therefore left up to you.

God does not test His children. What you consider to be tests from God's end are basically problems you have created for yourself. The Divine is basically trying to help you out. Sometimes it might appear that it is testing you, but in reality the Divine would prevent a greater pain from coming to you.

Let us say you prayed for a good job, and it wasn’t granted to you, it will only be to save you from some immanent danger, or to bless you with something greater.
God loves you; He is there only because He loves you so much.
You are not separate from the Divine. To Him it is not loving someone else, but Himself.

There are certain areas where God could straight away intervene, and other areas where He cannot.
Here He needs your cooperation. Surrender and Helplessness are not a defeatist attitude.
It is to set aside your defective believe systems and complex emotions, seeing that they are a hindrance to Grace. Even if you could do this for a short while, God would have His way. What you must understand is that: while God is powerful, you too are powerful. That is the whole problem.
You are an aspect of God. You are a powerful being, who is full of defective thoughts, concepts and mental frameworks. So you are God, who has gone wrong. That is why; it is not possible to transform the world in one blow. You too have to cooperate with God in helping to change the world.

The ultimate purpose of life is to become one with God. Your whole life is so structured to push you in that direction. If every event in your life were thoroughly understood and experienced as an action from God, you would move closer to God. Ultimately you become one with God.

If you are talking about true surrender, man and God cannot coexist.
Either there is man, or there is God.
If you are there, you don't give a chance for God. Where man ends, God begins.

As you go on progressing, you will find that one minute you are God yourself and the next minute you are not. What happens is after sometime you will realize that actually you and God are the same. But, sometimes you have the feeling of oneness; sometimes you have a feeling of separation.
It is then that you can be of very great help to people.
You will actually discover that you are one with the Divine, that you are actually God.
This continues on a regular basis, the only thing is as you go along; the time that you experience oneness with God would be more.
You would actually become The Divine or Light or God or whatever you want to call it; it all depends upon you. When you still go deeper, your physical form can also be affected.
There is no end to these things; these are things, which happen very naturally, very automatically.

All existence is bliss when you are one with the Divine.

From Bhagvan's teachings.