dzikir: is continues recitation of some type of reading either Allah’s name or Ayat of the Quran, can be done for various reasons such as to please Allah or even spirituality
Meditation: is just getting yourself in a calm state
Wazifa: is reading specific Ayat of the Quran, or Allah’s name for a certain length of time for a Hajat (wish)
Amliyat: is similar to wazifa but is done with more restrictions and is done for higher spiritual purposes
above information is from my teacher when I was discussing the subject with them alhamdulillah they have many years of experience in the Spirituality/Ruhaniyat field
you can also find different courses that I offer that Specialise in Meditation/Muraqabah dzikir and higher spiritual purposes and Spirituality/Ruhaniyat and Spiritual power + Spiritual abilities inshallah for more information please click here