4

Boone wears a shirt that has 4 aces on it. 

Locke tells Walt 4 times to "see it" when teaching him to throw the knife.

Locke    That's right. Now do it again. But see it. See it before you do it. Visualize the path. See it. See it.

Michael's nurse says that she's a mother of 4.

Nurse    Trust me, mother of 4 talking here. He'll get a kick out it.

8

Michael gives Walt a box of letters that he had written to him for the past 8 years.

Michael    Go ahead. [Walt opens it.] Every card, every letter I sent you over the last 8 years.

15

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16

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23

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42

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All

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108

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815

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