Allah says in the Quran: “Invoke your Lord in humility and secretly; Indeed, He does not like transgressors. And do not do mischief on the earth, after it has been set in order, and invoke Him with fear and hope; Surely, Allah’s Mercy is (ever) near unto those who do good.” (Al-Arraf 7: 56 & 57)
[In light of these Quranic verses, Huzur (atba) spoke about the importance of making peace, and keeping peace, and to invoke Allah in secret, and the best way to invoke Allah in secret is when you wake up at night for the Tahajjud prayer, where you meet Allah in secret, whereby no one knows about it and you invoke Him. A person may not invoke Allah only at night, but also during the day in his Zikr. Allah may not accept a duah right away, or the next day or in a week, etc. After many years also He can grant that duah and fulfill it.
Do not do like the woman who despite being in prayer but each time someone came at her neighbour’s place, she used to count the number of people by placing pebbles and then she used to count the number of people who came through the number of pebbles which there were. In the end, it is these very pebbles which formed a barrier between her and Heaven and finally she fell into hell. On the other hand, there is the example of the prostitute upon whom Allah has mercy because of a good deed she did. On day, she saw one of the creatures of Allah, a thirsty dog. She put herself to great trouble only to quench the thirst of the dog. She went to seek water for it and removed her shoe and used it as a recipient to hold water so that she could give it to the dog and quench its thirst. In the end, Allah admitted her to Paradise for her good deed.
You should never create disorder on earth after you have secretly invoked Allah. You should not nullify your invocations and prayers by doing evil upon the earth. And you should not dare to say that despite multiple prayers that you have done, but Allah is not fulfilling those invocations. You should never doubt the ability of Allah to fulfill those duahs. On the contrary, a believer should always trust in Allah and be confident that Allah will listen and grant him his prayers.