OK, let's assume this is literal and let's examine it...
First point, this was directed at the Pharisees...
Luk 16:14 And the Pharisees also, who were covetous, heard all these things: and they derided him.
so it was definitely a parable...
Mat 13:34 All these things spake Jesus unto the multitude in parables; and without a parable spake he not unto them:
He only spoke directly to His disciples.
Now on to Luke 16...
Luk 16:19 There was a certain rich man, which was clothed in purple and fine linen, and fared sumptuously every day:
Luk 16:20 And there was a certain beggar named Lazarus, which was laid at his gate, full of sores,
Luk 16:21 And desiring to be fed with the crumbs which fell from the rich man's table: moreover the dogs came and licked his sores.
Luk 16:22 And it came to pass, that the beggar died, and was carried by the angels into Abraham's bosom: the rich man also died, and was buried;
Luk 16:23 And in hell he lift up his eyes, being in torments, and seeth Abraham afar off, and Lazarus in his bosom.
Now they can SEE each other. A far off is a relative term. How far off?
Luk 16:24 And he cried and said, Father Abraham, have mercy on me, and send Lazarus, that he may dip the tip of his finger in water, and cool my tongue; for I am tormented in this flame.
Luk 16:25 But Abraham said, Son, remember that thou in thy lifetime receivedst thy good things, and likewise Lazarus evil things: but now he is comforted, and thou art tormented.
A far off is still close enough to be able to talk with one another.
Luk 16:26 And beside all this, between us and you there is a great gulf fixed: so that they which would pass from hence to you cannot; neither can they pass to us, that would come from thence.
Luk 16:27 Then he said, I pray thee therefore, father, that thou wouldest send him to my father's house:
Luk 16:28 For I have five brethren; that he may testify unto them, lest they also come into this place of torment.
Luk 16:29 Abraham saith unto him, They have Moses and the prophets; let them hear them.
They cannot extend help to the rich man. Carefully note, if this parable is direct teaching, then we are instructed to consult Moses and the Prophets. Are you doing that? Are you living by the Laws of Moses?
Luk 16:30 And he said, Nay, father Abraham: but if one went unto them from the dead, they will repent.
Luk 16:31 And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead.
If you won't hear Moses and the Prophets, then you won't hear the One who rose from the dead.
Now lets look at a couple of issues here, we discovered in vs 23 that they can see each other. In vs 24-25 they can hear each other and speak to each other but in vs 26 we see they cannot interact. Those in Abraham's bosom cannot extend help to those in hades. OK then, here are some points to consider...
If this is not a parable but rather direct teaching then...
1) Saved mothers in heaven can see their lost children in hell being burned and tormented.
2) Saved mothers in heaven can hear their lost children in hell shrieking and screaming in the fire.
3) Saved mothers in heaven are restricted from helping their children in hell suffering horribly.
So this is your idea of the way a loving God deals with His children for ALL ETERNITY?
It is a parable and not teaching on the subject of heaven and hell.
Here is a good explanation of this parable...
The Real Meaning of The Rich Man and Lazarus by Dr. Ernest Martin