How much faith, love, grace, etc, does one need to have? Jesus said the following;

Matthew 17:20


"I tell you the truth, if you have faith as small as a mustard seed, you can say to this mountain, ‘Move from here to there’ and it will move. Nothing will be impossible for you.


What does Jesus mean by this? Does this imply that faith can be graded on a scale from pretty small (like a mustard see) to the humungous (like a star)? Or is faith a discrete thing which you can either have or have not.

Consider the following rough faith-scale, with 1 equal mustard seed size faith and 10 equals mountain size faith.

1 - Mustard Seed size
2- Pea
3- Kola nut
4- Orange
5- Yam
6- Barrow
7- Door
8- House
9- Jumbo Jet
10 - Mountain size

How much faith do you need to be saved?