Go - (CW) "Go" means "to go up," "to mount," and "to turn up." It has a lot of specific meanings including "ascending to higher knowledge." "Sprung up" is used specifically to describe when plants grow on sticks or other plants, entwining them, or "mounting" them. The root word means "step." And the prefix of the verb means "up." This is not the common word for "go."

ye -- This is from the second-person, plural form of the verb.

up  -   And the prefix of the verb means "up."

unto -- The word translated as "unto" means "into" a place, "towards" as a direction, "in regards to" a subject, and "up to" limits in time and measure.

this -- The word translated as "this" is the Greek definite article, without a noun, it has the sense of "the one." The Greek article is much closer to our demonstrative pronouns ("this," "that," "these," "those") than the English "the." See this article for more. 

feast:  - "Feast" is from a noun Jesus only uses here that means "feast", "festival", "holiday," and generally, "holiday-making", "pastime," and "amusement."

I -- The pronoun "I" is used here. Since, as the subject of the sentence, it is part of the verb, its explicit use accentuates who is speaking "I." Saying "I myself" captures this feeling in English.

missing "myself" -- (MW)  The subjective pronoun repeats the information in the verb so it should be repeated in English like "I myself."

go  -  (CW) "Go" means "to go up," "to mount," and "to turn up." It has a lot of specific meanings including "ascending to higher knowledge." "Sprung up" is used specifically to describe when plants grow on sticks or other plants, entwining them, or "mounting" them. The root word means "step." And the prefix of the verb means "up." This is not the common word for "go."

not -- "Not" is an adverb that means "not yet" and a strong form of "not" and "not at all." This is not the common words translated as "not."

up  -   And the prefix of the verb means "up."

yet --  "Not" is an adverb that means "not yet" and a strong form of "not" and "not at all." This is not the common words translated as "not."

unto -- The word translated as "unto" means "into" a place, "towards" as a direction, "in regards to" a subject, and "up to" limits in time and measure.

this -- The "this" is a pronoun that can mean "this" or "that," the nearer or the further depending on usage. It is often used in the neuter plural to refer to "these things."

feast:  - "Feast" is from a noun Jesus only uses here that means "feast", "festival", "holiday," and generally, "holiday-making", "pastime," and "amusement."

for -- The word translated as "for" introduces a statement of fact or cause, "for what," "because," "since," and "wherefore."

my -- "My" is the regular first-person adjective in Greek indicating possession, so  "mine," "of me," "my," "relating to me," and "against me."

missing "the"  -- (MW) The untranslated word is the Greek definite article, which usually precedes a noun and, without a noun, takes the meaning of "the one." The Greek article is much closer to our demonstrative pronouns ("this," "that," "these," "those"). See this article for more. 

time -- (CW) "Time" is a noun that means "due measure," "season," "opportunity," "time," and "profit." This is not the Greek word for "time."

is --  (WT) This helping verb indicates the present tense of the verb. This is not the tense of the following verb, which is in the past perfect

not yet -- "Not yet" is an adverb that means "not yet" and a strong form of "not" and "not at all." This is the same word translated earlier as "not."

full. -- (WF) "Full" is a verb that means "to fill," "to fulfill," and "to fill full." It is not a noun, but a verb.

come -- (IW) There is nothing that can be translated as "come" in the Greek source.