meaning?

So, what do you think Jesus was talking about here?

And how is it pertinent today?

Matthew 19

 29 And everyone who has given up houses 

or brothers 

or sisters 

or father 

or mother 

or children 

or property, 

for my sake, 

will receive a hundred times as much in return 

and will inherit eternal life. 

30 But many who are the greatest now will be least important then, 

and those who seem least important now will be the greatest then.