Also, anyone reading your previous post: "ONLY murshid's nazar" , they would assume that a person can*'t* fight the shayateen without a help of a shaykh.... which totally not true!
There are many many ways and means to reach ALLAH.There are easy ways and there are hard ways.
I will give an example.
In general, be a good muslim by obeying ALLAH. It may sound very easy but infact it becomes easy once satan's constant attacks are ALWAYS thwarted by you. You are so strong in your belief for ALLAH that try as he might, satan can do no damage to you. Im not talking about being a muslim, im talking about ibadat. Once you start offering 5 times prayers as farz but want to do more for glory from ALLAH, like tahajud,chasht salah etc and recite Koran everyday, satan will become alert. and then start attacking you. After sometime if u fall victim of satan, you will stop praying tahajud with a genuine excuse mind you, that may very well be, lack of sleep hindering concentration on my job etc. maybe after a few days you even stop reciting Koran because you are tired from constant meetings in office and a tough schedule has come up, but ur mind is satisfied that atleast im praying 5 times a day and get up for fajr.
ALLAH has send ayats in Koran plus references in hadith are present that will not allow satan to put negative thoughts in you when u go that extra step for ALLAH. Imagine offering a year of tahajud namaz of full 365 days, no matter what.
Bear in mind that a WALI-ALLAH will take you to ALLAH through a "shortcut" by making your task very easy.
If you have a backing of some WALI-ALLAH and you have requested Him to pray to ALLAh that you want to come near ALLAH through ibadat.
Firstly, that WALI-ALLAH will pray to ALLAH to lock up the satan from stopping you from ibadat. The difference between our prayers (duas) and his prayer (dua) is that, His prayer(dua) is accepted atonce since He is closer to ALLAH than us.
Secondly, He will tell you ways to do some ibadat to get closer to ALLAH more quickly.
Now for a general concept in Roohaniat: (Connection of WALI-ALLAH to ALLAH)
A WALI-ALLAH is connected to ALLAH through a certain channel. This channel starts from Hazrat Muhammad (saw) , then to Hazrat Ali (R.A) and from Hazrat hasan Basri (R.A) comes down to that WALI-ALLAH's own murshid and last to that WALI-ALLAH.
"...Al-Tirmidhi and al-Hakim has quoted on the authority of 'Ali who said: The Messenger of God, peace and blessings be upon him, said: 'I am the city of knowledge and 'Ali is its gate'..."
This hadith is also a big hint, that a channel is there for anyone to reach Hazrat Muhammad (saw) and that is through Hazrat ALI (R.A).
In roohaniat, a WALI-ALLAH even will make dua using his murshid's name, not his own name(making His murshid as waseela). That dua will travel upwards from one buzurg to another and finally reaching Hazrat Muhammad (saw) and who is the final authority and his "stamp" on that dua will get it accepted by ALLAH.
In short we say, that WALI-ALLAH is connected to ALLAH directly, but going in depth about it, this is how his channel with ALLAH works.