Yaa Hayyu Ya Qayyum, Bi Rahmatika Astagheez; What is the meaning of this Du’aa and can you provide any related Hadith about it.

Sayyiduna Anas ibn Maalik (Radhiallaahu Anhu) reports that Rasulullah%0D%0A(Sallallaahu Alayhi Wasallam) once mentioned to Sayyiduna Faatima%0D%0A(Radhiallaahu Anha) to recite the following supplication morning and%0D%0Aevening, 'Yaa hayyu yaa qayoomu, birahmatika astagheeth. Aslih liy sha-aniy%0D%0Akulluhu wa laa takilniy ilaa nafsiy tarfata aynin.' (Trans: On You Who is%0D%0AEverliving and Sustains and Protects everything, I seek assistance through%0D%0Athe means of your mercy, correct for me all my affairs and do not entrust me%0D%0Ato my Nafs (myself) for the moment of a blink of an eye.') (Mustadrak%0D%0Aal-Haakim vol.1 pg.545; Shu'ubul Iemaan of Imaam Bayhaqi Hadith No.:760,%0D%0A761) Imaam Haakim and Imaam Dhahabiy have classified this narration as Sahih%0D%0A(authentic).%0D%0A%0D%0ASayyiduna Abdullah ibn Mas'ood (Radhiallaahu Anhu) narrated that whenever%0D%0ARasulullah (Sallallaahu Alayhi Wasallam) used to be afflicted in any worry%0D%0Aor concern, he used to recite the following supplication, 'Yaa Hayy Yaa%0D%0AQayyoom birahmatika astagheeth.' (Mustadrak al-Haakim vol.1 pg.509; Shu'ubul%0D%0AIemaan of Imaam Bayhaqi Hadith No.:10231) Also see Kitaabud Du'aa of Imaam%0D%0ATabrani pg.47 and Majmauz zawaaid vol.10 pg.147%0D%0A%0D%0Aand Allah Ta'ala Knows Best%0D%0A%0D%0AMoulana Muhammad ibn Moulana Haroon Abbassommar%0D%0AFACULTY OF SPECIALTY IN HADITH%0D%0A%0D%0ACHECKED AND APPROVED: Mufti Ebrahim Desai