Why footnotemark and footnotetext numbering is erroneous?

Question

I used footnotemark and text in the below document but the footnote numbers below appear erroneously. This occurs even when I run multiple times. Why this happens? How to correct this?

\documentclass[a5paper]{memoir}
\usepackage{polyglossia}
\setmainlanguage{english}
\setdefaultlanguage{english}
\newfontfamily\englishfont[Ligatures=TeX]{Ubuntu}

\begin{document}

Let us do \emph{dhyāna}\footnotemark of (Gaṇeśa) the one with white garments, all pervading\footnotemark, of the hue of the moon, with four arms and a pleasing face for him to destroy our impediments.

\footnotetext{pratyayaikatānatā dhyānam -- mind becoming concentrated on one thought / image / icon is called \emph{dhyāna}.}

\footnotetext{vyāpanādviṣṇuḥ = The one who pervades everything. In Sanātana Dharma, Bhagavān pervades all creation. This is in contrast with other religions and schools of thought which hold ``God'' to be some human-like personality sitting somewhere in heaven.}

Having heard the Rāmakathā\footnotemark-roars of the Vālmīki-muni\footnotemark-lion traversing the Kavitā-forest, who indeed would not to achieve the highest abode\footnotemark?

\footnotetext{Rāmakathā = Rāmāyaṇa, the story of Rāma.}

\footnotetext{Muni -- manuta iti muniḥ - the one who is constantly doing \emph{manana} (contemplation) of \emph{śāstras} and \emph{Bhagavān} is a muni.}

\footnotetext{Simple meaning of the \emph{śloka} is that one achieves the highest goal achievable by human i.e. \emph{mokṣa} by learning the Rāmāyaṇa.}


\end{document}