There is something important about touch:'
Healing properties of touch
As far as an empowering by the Holy Spirit, it isn't required but it is used:
Acts 8:18 And when Simon saw that through laying on of the apostles' hands the Holy Ghost was given, he offered them money,
Acts 19: 6 And when Paul had laid his hands upon them, the Holy Ghost came on them; and they spake with tongues, and prophesied.
It was also declared for the purpose of healing:
Mark 16:18 They shall take up serpents; and if they drink any deadly thing, it shall not hurt them; they shall lay hands on the sick, and they shall recover.
Acts 28:8 And it came to pass, that the father of Publius lay sick of a fever and of a bloody flux: to whom Paul entered in, and prayed, and laid his hands on him, and healed him.
It also is used for commissioning:
1 Timothy 4:14 Neglect not the gift that is in thee, which was given thee by prophecy, with the laying on of the hands of the presbytery.
Acts 6: 5 And the saying pleased the whole multitude: and they chose Stephen, a man full of faith and of the Holy Ghost, and Philip, and Prochorus, and Nicanor, and Timon, and Parmenas, and Nicolas a proselyte of Antioch: 6 Whom they set before the apostles: and when they had prayed, they laid their hands on them.
Also warned not to do it suddenly (as in without purpose or without foresight)
1 Tim 5:22
AMP Do not hurry to lay hands on anyone [ordaining and approving someone for ministry or an office in the church, or in reinstating expelled offenders], and thereby share in the sins of others; keep yourself free from sin.