How can a grandmother who can barely move pray when it is difficult to face the Qiblah?

If it is extremely difficult for your grandmother to face the Qibla (definition), and she cannot find anyone to help her orient herself, then she may pray in her current condition, and the condition of facing the Qibla is waived for her due to her inability. However, if she does not experience great difficulty, or if she finds someone to help her orient herself, then it is obligatory for her to face the Qibla, even if it means keeping her prayer mat continuously oriented towards it. It is permissible for her to combine two prayers if it is difficult for her to perform each prayer at its prescribed time, and she may pray sitting if standing is difficult for her.