Revelation 1:7
Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
This verse specifically refers to the RETURN of Christ to earth. This great event is known as the "revealing" or "revelation" of Christ when he returns as King of Kings and Lord of Lords as discribed in Revelation 19:11-16. It is important to note that this is NOT the rapture. The rapture is the churches departure as seen in Revelation 4:1.
"And all kindreds of the earth shall wail because of him". This is because here we see the Second Coming of Christ when he returns with his saints (Revelation 19) to execute judgement on all (Jude verses 14 & 15).
"Even so, Amen", interestingly the Greek for even so is "Amen" and the Hebrew for "Amen" is even so.

Revelation 1:6
And (He) hath made us kings and priests unto God and his Father; to him be glory and dominion forever and ever. Amen.
Because of His love and the washing of regeneration, Christ is able to make us kings and priests unto God and his Father. If you are a born-again believer you are a preist in the eyes of the Almighty. You can bring your own petitions to God. You need no other minister/mediator to do that. All born-again believers are (according to 1 Peter 2:9) members of a royal priesthood, a holy nation, a peculiar people; that (we) should shew forth the praises of him who hath called (us) out of darkness into his marvellous light. What a great thing! To him be the glory and dominion for ever and ever. Amen.