Because of the importance of the Holy Spirit’s work with us, the Lord said to His disciples, the saints:

"Nevertheless I tell you the truth. It is to your advantage that I go away; for if I do not go away, the Helper will not come to you; but if I depart, I will send Him to you” (Jn 16:7)… And told them about Him “that He may abide with you forever… and will be in you” (Jn 14:16, 17).

The Glorified, Lord Christ, lived with them in His body until He rose to Heaven then promised them the Holy Spirit to stay with them forever, the Spirit of truth, the Comforter… So what should we know about the Holy Spirit?

The Church has a strong program during this fast put by the ‎Fathers
through the inspiration of the Holy Spirit, which became to ‎the soul a
source of survival and spiritual filling, and to the Church ‎a source
of communal repentance and deep fellowship with the ‎Lord Jesus Christ
in His fast…for Christ fasted for us and with us– ‎and certainly He is
a partner with each fasting soul.‎

The monks used to take this
opportunity of the holy fast to ‎leave their monasteries to the
wilderness in solitude and in the ‎fullness of the company of the Lord
Jesus and the fellowship of ‎His Holy Spirit. At the end of Lent they
returned to their ‎monasteries (as was recorded for us in the story of
Saint Mary the ‎Egyptian and her meeting with Saint Zosima the priest).‎

In my opinion the grace of the Holy Spirit most readily fills those who undertake spiritual work wholeheartedly and determine from the very beginning to stand firm and never to give ground to the enemy in no matter what battle, until they conquer him. However, the Holy Spirit, Who has called them, at first makes all things easy for them, in order thus to sweeten the beginning of the work of repentance, and only later shows them its ways in their full truth (arduousness). Helping them in all things, He impresses on them what works of repentance they should undertake, and lays down the form and limits both as regards the body and the soul, until He brings them to complete conversion to God, their Creator.

For this purpose He constantly urges them to give exertion to body and soul in order that both alike, being equally sanctified, should equally become worthy heirs of eternal life; to exert the body in constant fasting, work and frequent vigils, and the soul, in spiritual exercises and diligence in all forms of service (and obediences) performed through the body. This (to do nothing carelessly, but always with care and the fear of God) should be zealously observed in all work done with the body, if we wish it to bear fruit.

Jonah disobeyed God's command and fled in a ship, but God who brings
"out of the eater came something to eat, and out of the strong came
something sweet" (Judg. 14:14); God who is able to turn evil into good,
was also able to make use of Jonah's disobedience.

If it was through Jonah's obedience that the people of Nineveh were to
be saved, it was through his disobedience that the mariners would be
saved.

When Jonah disobeyed the Lord he went down into a ship where there was
a people belonging to the Lord, whom the Lord loved and sought to save.
They were gentiles like the people of Nineveh, and were likewise in
need of salvation. Let their salvation be through Jonah's disobedience.
Jonah was an instrument in the hand of the Lord by which He conquered,
with its obedience and with its disobedience.

Jonah's Problem

In the Book of Jonah, God wants us to know an important fact: that the prophets were not of a different nature but were people "with a nature like ours" (James.5:17), having weaknesses, shortcomings and faults, and it was possible for them to fall like us.
The only thing was that the grace of God worked in them and gave them
power. It was not their power but the power of the Holy Spirit working
in their weakness, that the power may be of God and not of us,
according to the Apostle's words (2 Cor. 4:7).