Passage
Yet a little and the world sees me no longer; but ye see me; because I live ye also shall live.
John 14:19 (DBY)
Nearby Context
John 14:17 the Spirit of truth, whom the world cannot receive, because it does not see him nor know him; but ye know him, for he abides with you, and shall be in you.
John 14:18 I will not leave you orphans, I am coming to you.
John 14:19 Yet a little and the world sees me no longer; but ye see me; because I live ye also shall live.
John 14:20 In that day ye shall know that I [am] in my Father, and ye in me, and I in you.
John 14:21 He that has my commandments and keeps them, he it is that loves me; but he that loves me shall be loved by my Father, and I will love him and will manifest myself to him.
Study Lenses
The verse centers on "world", "little", "sees", "longer", "live", and "shall". It is saying that the verse draws attention to "world" and "little", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 18's "I will not leave you orphans I..." into verse 20's "In that day ye shall know that...", so "world" and "little" belong inside that flow. In John context, the local focus is the identity of Jesus, new birth, eternal life, and belief and unbelief.
A plain takeaway is to answer the verse's own emphasis on "world" and "little" with trust shaped by these words, not by a vague optimism outside the passage.